Health Services

COVID-19 Vaccine Availability

The CDC recommends COVID-19 vaccination for everyone 6 months and older. FDA-approved or authorized COVID-19 vaccines are currently available to all U.S. citizens and residents. Visit the CDC website for more information.

COVID-19 vaccines are safe, effective, and free.
  • Getting the vaccine can reduce the risk of severe disease, hospitalizations and long-term complications for COVID-19For children, the vaccine can also curb community transmission and reduce disruptions to in-person learning activities. 
To learn more, visit the CDC website to get answers to frequently asked questions, see Interim Clinical Considerations, and bust myths about vaccines.

COVID-19 & Influenza Testing at Nellis Air Force Base

The drive-thru COVID-19 Testing Station at Mike O'Callaghan Military Medical Center permanently closed April 3, 2023.

If you were tested for COVID-19 or Influenza at Mike O’Callaghan Military Medical Center, results are available in the MHS GENESIS Patient Portal. Results may take up to 72 hours to appear in your account.

COVID-19 At-Home Tests

Every home in the U.S. is eligible to place up to two orders for four free tests (eight tests total) at

COVID-19 at-home tests are also available at Mike O’Callaghan Military Medical Center for TRICARE beneficiaries. You may pick up your tests during regular business hours at your primary care clinic. Limit four tests per TRICARE beneficiary (or eight per household) at a time. Please have DOD ID#s available.

If you are experiencing COVID-19 or flu-like symptoms or your COVID-19 at-home test is positive, contact your PCM team at 702-653-CARE (2273) or send a message through the MHS GENESIS Patient Portal.

Vaccine Offerings at Nellis Air Force Base

All eligible individuals may receive the Pfizer-BioNTech COVID-19 vaccine. Vaccines are available at the Immunizations Clinic.

What to Expect

  • Please bring your CAC, military ID, or TRICARE coverage card.
  • Please wear a short-sleeved shirt, as the vaccine is administered in the upper arm.

If You Receive Your Vaccine Off-Base

If you or your family are Mike O’Callaghan Military Medical Center beneficiaries, your records may be updated via the MHS GENESIS Patient Portal or at the Immunizations Clinic.

Either send message to the “Nellis Immunizations Clinic” mailbox in the Patient Portal (include patient name, patient date of birth, vaccine(s) given and lot numbers), or bring your CDC vaccination card to the Immunizations Clinic. Immunizations Clinic staff will update you and/or your family’s medical records accordingly.

Stay Up to Date with COVID-19 Vaccines and Boosters

You are up to date with your COVID-19 vaccines if you have completed a COVID-19 vaccine primary series and received the most recent bivalent dose recommended for you by the CDC.
Vaccine recommendations are based on your age, the vaccine you first received, and time since last dose. People who are moderately or severely immunocompromised have different recommendations for COVID-19 vaccines.
Updated bivalent vaccines are now recommended for anyone six months old and older. Per the CDC, bivalent mRNA vaccines are not authorized at this time for primary series doses with the following exception: children ages six months to four years who receive two primary series doses of a monovalent Pfizer-BioNTech vaccine should receive a bivalent Pfizer-BioNTech vaccine as their third primary series dose. Consult with your primary care manager on availability and the best options to help protect you and your loved ones from severe illness, hospitalization, or death from COVID-19.
Find more information at

Concerns about the vaccine?

Speak with a Vaccine Expert. You may contact the DHA-Immunization Healthcare Support Center at 1-877-GET-VACC (1-877-438-8222) option 1 or Defense Switched Network (DSN) 761-4245, option 1, if you have questions about the vaccines or about an adverse event following vaccination.

Visit the CDC Website for current COVID-19 booster guidance.

Visit the TRICARE website for information about the COVID-19 vaccine.

COVID-19 Vaccines


7:30 a.m. to Noon
1 p.m. to 4 p.m.*

*Vaccine check-ins after 2:30 p.m. are not guaranteed same-day service


Immunizations Clinic
4700 Las Vegas Blvd. North
Building 1300, First Floor
Nellis Air Force Base, Nevada 89191

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COVID-19 Testing


7 a.m. to 4 p.m.




The drive-thru COVID-19 Testing Station will permanently close effective April 3, 2023.

Mike O'Callaghan Military Medical Center
4700 Las Vegas Blvd. North
Parking Lot 8
Nellis Air Force Base, Nevada 89191

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Don't forget to keep your family's information up-to-date in DEERS.